Bag for storing coffee and method for manufacturing same

Abstract

Provided are: a bag for storing coffee, which is capable of discharging carbon dioxide and suppressing the intrusion of oxygen, has sufficient strength, and is capable of preventing the inflow of outside air accompanying a sudden change in volume; and the like. According to the present invention, provided is a coffee storage bag (10) for storing 60-2000 g (inclusive) of coffee, the coffee storage bag (10) being provided with a band-shaped joining region (16) in which both ends (12a) of a film overlap and join each other, the band-shaped joining region (16) being provided with a plurality of openings (14) formed in the band-shaped joining region (16), the openings (14) being formed in the band-shaped joining region (16), and the openings (14) being formed in the band-shaped joining region (16). The air passage (24) is configured from: an air chamber (26) which is a substantially rectangular wave-shaped space formed by not joining the films, extending along the ends of the films, and having both ends sealed; an internal air passage (28) which communicates the air chamber with the internal space; and an external air passage (30) which communicates the air chamber with the external space. The rectangular wave extends along the extension direction of the rectangular wave approximately parallel to the end part of the film; a vertical portion (38) that forms an angle of 40-120 degrees (inclusive) with respect to the lateral portion and that extends in a direction connecting the inner space and the outer space of the bag body; and a bent portion (40) that serves as a joining portion between the lateral portion and the longitudinal portion.

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